Creep behavior of V-notched components

Geometrical discontinues such as notches play a significant rule in structural integrity of the components, especially when the component is subjected to very severe conditions, such as the high temperature fatigue or creep. In this paper, a generalized form of the existing notch tip creep stressstr...

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Main Authors: P. Gallo, S.M.J. Razavi, M. Peron, J. Torgersen, F. Berto
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2017-06-01
Series:Fracture and Structural Integrity
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Online Access:https://www.fracturae.com/index.php/fis/article/view/1912
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author P. Gallo
S.M.J. Razavi
M. Peron
J. Torgersen
F. Berto
author_facet P. Gallo
S.M.J. Razavi
M. Peron
J. Torgersen
F. Berto
author_sort P. Gallo
collection DOAJ
description Geometrical discontinues such as notches play a significant rule in structural integrity of the components, especially when the component is subjected to very severe conditions, such as the high temperature fatigue or creep. In this paper, a generalized form of the existing notch tip creep stressstrain analysis method developed by Nuñez and Glinka, is developed and extended to a wide variety of blunt V-notches. Assuming the generalized Lazzarin-Tovo solution that allows a unified approach to the evaluation of linear elastic stress fields in the vicinity of both cracks and notches is the key in getting the extension to blunt V-notches. Numerous cases have been analysed and the stress fields obtained according to the proposed method were compared with proper finite element data, showing a very good agreement.
format Article
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institution Kabale University
issn 1971-8993
language English
publishDate 2017-06-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-c016540881f74bd8bc67818d001e61402025-01-03T00:40:22ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-06-011141Creep behavior of V-notched componentsP. GalloS.M.J. RazaviM. PeronJ. TorgersenF. BertoGeometrical discontinues such as notches play a significant rule in structural integrity of the components, especially when the component is subjected to very severe conditions, such as the high temperature fatigue or creep. In this paper, a generalized form of the existing notch tip creep stressstrain analysis method developed by Nuñez and Glinka, is developed and extended to a wide variety of blunt V-notches. Assuming the generalized Lazzarin-Tovo solution that allows a unified approach to the evaluation of linear elastic stress fields in the vicinity of both cracks and notches is the key in getting the extension to blunt V-notches. Numerous cases have been analysed and the stress fields obtained according to the proposed method were compared with proper finite element data, showing a very good agreement.https://www.fracturae.com/index.php/fis/article/view/1912CreepV-notchesStress fieldsStress evaluationStrain energy density
spellingShingle P. Gallo
S.M.J. Razavi
M. Peron
J. Torgersen
F. Berto
Creep behavior of V-notched components
Fracture and Structural Integrity
Creep
V-notches
Stress fields
Stress evaluation
Strain energy density
title Creep behavior of V-notched components
title_full Creep behavior of V-notched components
title_fullStr Creep behavior of V-notched components
title_full_unstemmed Creep behavior of V-notched components
title_short Creep behavior of V-notched components
title_sort creep behavior of v notched components
topic Creep
V-notches
Stress fields
Stress evaluation
Strain energy density
url https://www.fracturae.com/index.php/fis/article/view/1912
work_keys_str_mv AT pgallo creepbehaviorofvnotchedcomponents
AT smjrazavi creepbehaviorofvnotchedcomponents
AT mperon creepbehaviorofvnotchedcomponents
AT jtorgersen creepbehaviorofvnotchedcomponents
AT fberto creepbehaviorofvnotchedcomponents